Friday night football fans should plan to bundle up before venturing out to stadiums.

The temperature will be about 40 degrees in Amarillo by about 7 p.m. Friday and will fall steadily to about 23 degrees — the lowest of the year — by early Saturday morning, said Nicholas Fenner, a meteorologist with the National Weather Service in Amarillo.

Fenner said temperatures across the area would be close to those in Amarillo, though the southeastern Texas Panhandle should be a few degrees warmer.

“Say like Clarendon or Wheeler, it may be in the mid-40s in that area during the same timeframe,” Fenner said.

Amarillo temperatures are expected to peak at about 50 degrees by about 3 or 4 p.m. Friday, Fenner said.

Amarilloans also were expected to wake to freezing temperatures Friday, Fenner said, as temperatures in the city were expected to be about 27 degrees at 7 a.m.

“People should be going to work while it’s still freezing,” Fenner said.

Amarillo’s previous low — and the only other time temperatures reached freezing — was 32 degrees early Oct. 8, Fenner said.

The low Thursday night/Friday morning was also expected to be the city’s first hard freeze, Fenner said.

A hard freeze, which can be damaging to some plants, occurs when temperatures reach 27 degrees and below, Fenner said.